rŌ$23Rj 00=ff"( Fڎm*)A[3X暄S6/:|Lы"D(폩ZݱsO4L&x d:1bɚ@,396֟aoiEL;qGW`w}y3j xkt=z?*FkcM>p,!7mEXXO&VytI6p'q ם>}g)Ƴcpanic: attempt to execute user address 0x0 in supervisor mode Stopped at db_enter+0x18: addq $0x8,%rsp TID PID UID PRFLAGS PFLAGS CPU COMMAND * 22447 81131 0 0 0x4000000 0 syz-executor.0 db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 pageflttrap() at pageflttrap+0x3eb kerntrap(ffff800015b74020) at kerntrap+0xdb sys/arch/amd64/amd64/trap.c:287 alltraps_kern_meltdown(6,ffff800015b7b000,fffffd803bf17778,10,ffff800000025460,ffff800015b74288) at alltraps_kern_meltdown+0x7b 0(b,ffff800015b741e8,83,ffff800015b74288,0,b) at 0 rt_match(fffffd803c138828,0,1,0) at rt_match+0xbe rt_clone sys/net/route.c:266 [inline] rt_match(fffffd803c138828,0,1,0) at rt_match+0xbe sys/net/route.c:242 in_pcbselsrc(ffff800015b74360,fffffd8027286920,fffffd803c1387a8) at in_pcbselsrc+0x219 sys/netinet/in_pcb.c:934 in_pcbconnect(fffffd803c1387a8,fffffd8027286900) at in_pcbconnect+0x107 sys/netinet/in_pcb.c:492 udp_usrreq(fffffd802aaa3488,4,0,fffffd8027286900,0,ffff8000149178c8) at udp_usrreq+0x560 sys_connect(ffff8000149178c8,ffff800015b744e8,ffff800015b74530) at sys_connect+0x3df sys/kern/uipc_syscalls.c:388 syscall(ffff800015b745b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,fffffffffffffed2,0,3,b453cf86010) at Xsyscall+0x128 end of kernel end trace frame: 0xb479dc79f60, count: 2 https://www.openbsd.org/ddb.html describes the minimum info required in bug reports. Insufficient info makes it difficult to find and fix bugs. ddb> ddb> set $lines = 0 ddb> set $maxwidth = 0 ddb> show panic attempt to execute user address 0x0 in supervisor mode ddb> trace db_enter() at db_enter+0x18 sys/arch/amd64/amd64/db_interface.c:398 panic() at panic+0x15c sys/kern/subr_prf.c:207 pageflttrap() at pageflttrap+0x3eb kerntrap(ffff800015b74020) at kerntrap+0xdb sys/arch/amd64/amd64/trap.c:287 alltraps_kern_meltdown(6,ffff800015b7b000,fffffd803bf17778,10,ffff800000025460,ffff800015b74288) at alltraps_kern_meltdown+0x7b 0(b,ffff800015b741e8,83,ffff800015b74288,0,b) at 0 rt_match(fffffd803c138828,0,1,0) at rt_match+0xbe rt_clone sys/net/route.c:266 [inline] rt_match(fffffd803c138828,0,1,0) at rt_match+0xbe sys/net/route.c:242 in_pcbselsrc(ffff800015b74360,fffffd8027286920,fffffd803c1387a8) at in_pcbselsrc+0x219 sys/netinet/in_pcb.c:934 in_pcbconnect(fffffd803c1387a8,fffffd8027286900) at in_pcbconnect+0x107 sys/netinet/in_pcb.c:492 udp_usrreq(fffffd802aaa3488,4,0,fffffd8027286900,0,ffff8000149178c8) at udp_usrreq+0x560 sys_connect(ffff8000149178c8,ffff800015b744e8,ffff800015b74530) at sys_connect+0x3df sys/kern/uipc_syscalls.c:388 syscall(ffff800015b745b0) at syscall+0x507 sys/arch/amd64/amd64/trap.c:555 Xsyscall(6,0,fffffffffffffed2,0,3,b453cf86010) at Xsyscall+0x128 end of kernel end trace frame: 0xb479dc79f60, count: -13 ddb> show registers rdi 0xffffffff81b07ef7 db_enter+0x17 rsi 0x21a5 __ALIGN_SIZE+0x11a5 rbp 0xffff800015b73e90 rbx 0xffff800015b73f40 rdx 0x21a6 __ALIGN_SIZE+0x11a6 rcx 0xffff800015b7b000 rax 0xffff800015b7b000 r8 0xffff800015b73e50 r9 0x1 r10 0xffff800000a87700 r11 0x5256068053da43ec r12 0x3000000008 r13 0xffff800015b73ea0 r14 0x100 r15 0x1 rip 0xffffffff81b07ef8 db_enter+0x18 cs 0x8 rflags 0x246 rsp 0xffff800015b73e80 ss 0x10 db_enter+0x18: addq $0x8,%rsp ddb> show proc PROC (syz-executor.0) pid=22447 stat=onproc flags process=0 proc=4000000 pri=86, usrpri=86, nice=20 forw=0xffffffffffffffff, list=0xffff800014917b40,0xffffffff8255bd20 process=0xffff8000ffff6a30 user=0xffff800015b6f000, vmspace=0xfffffd803f013bb0 estcpu=36, cpticks=0, pctcpu=0.0 user=0, sys=0, intr=0 ddb> ps PID TID PPID UID S FLAGS WAIT COMMAND 81131 422633 71716 0 2 0 syz-executor.0 *81131 22447 71716 0 7 0x4000000 syz-executor.0 49511 369932 1 0 3 0x82 nanosleep getty 8982 394504 19968 0 2 0x2 syz-executor.1 71716 63446 19968 0 3 0x82 nanosleep syz-executor.0 91389 333962 0 0 3 0x14200 bored sosplice 19968 408782 59816 0 3 0x82 thrsleep syz-fuzzer 19968 89902 59816 0 3 0x4000082 nanosleep syz-fuzzer 19968 164777 59816 0 3 0x4000082 thrsleep syz-fuzzer 19968 257211 59816 0 3 0x4000082 thrsleep syz-fuzzer 19968 125477 59816 0 3 0x4000082 kqread syz-fuzzer 19968 389938 59816 0 3 0x4000082 thrsleep syz-fuzzer 19968 267524 59816 0 3 0x4000082 thrsleep syz-fuzzer 59816 444259 41199 0 3 0x10008a pause ksh 41199 98551 15544 0 3 0x92 select sshd 15544 442626 1 0 3 0x80 select sshd 36678 122917 64102 73 3 0x100090 kqread syslogd 64102 293551 1 0 3 0x100082 netio syslogd 68304 312811 1 77 3 0x100090 poll dhclient 85776 386272 1 0 3 0x80 poll dhclient 90177 105735 0 0 2 0x14200 zerothread 53500 94296 0 0 3 0x14200 aiodoned aiodoned 45788 50089 0 0 3 0x14200 syncer update 74447 139413 0 0 3 0x14200 cleaner cleaner 34686 83807 0 0 3 0x14200 reaper reaper 92836 167390 0 0 3 0x14200 pgdaemon pagedaemon 5377 13064 0 0 3 0x14200 bored crynlk 34570 332547 0 0 3 0x14200 bored crypto 77230 520364 0 0 3 0x40014200 acpi0 acpi0 39912 369894 0 0 3 0x14200 bored softnet 23239 411862 0 0 3 0x14200 bored systqmp 39169 106866 0 0 3 0x14200 bored systq 42915 169395 0 0 3 0x40014200 bored softclock 63494 368777 0 0 3 0x40014200 idle0 30332 168914 0 0 3 0x14200 bored smr 1 278770 0 0 3 0x82 wait init 0 0 -1 0 3 0x10200 scheduler swapper ddb> show all locks No such command ddb> show malloc Type InUse MemUse HighUse Limit Requests Type Lim Kern Lim devbuf 9575 6371K 8022K 78643K 15309 0 0 pcb 13 8K 9K 78643K 1421 0 0 rtable 118 12K 13K 78643K 1996 0 0 ifaddr 85 19K 20K 78643K 563 0 0 counters 19 16K 16K 78643K 19 0 0 ioctlops 0 0K 2K 78643K 207 0 0 iov 0 0K 24K 78643K 832 0 0 mount 1 1K 1K 78643K 1 0 0 vnodes 1221 77K 78K 78643K 3448 0 0 UFS quota 1 32K 32K 78643K 1 0 0 UFS mount 5 36K 36K 78643K 5 0 0 shm 2 1K 5K 78643K 38 0 0 VM map 2 0K 0K 78643K 26 0 0 sem 12 0K 0K 78643K 525 0 0 dirhash 12 2K 2K 78643K 12 0 0 ACPI 1793 195K 288K 78643K 12645 0 0 file desc 5 13K 25K 78643K 3580 0 0 sigio 1 0K 0K 78643K 85 0 0 proc 50 38K 55K 78643K 1370 0 0 subproc 32 2K 2K 78643K 340 0 0 NFS srvsock 1 0K 0K 78643K 1 0 0 NFS daemon 1 16K 16K 78643K 1 0 0 ip_moptions 0 0K 0K 78643K 183 0 0 in_multi 24 1K 2K 78643K 279 0 0 ether_multi 1 0K 0K 78643K 12 0 0 mrt 0 0K 0K 78643K 38 0 0 ISOFS mount 1 32K 32K 78643K 1 0 0 MSDOSFS mount 1 16K 16K 78643K 1 0 0 ttys 90 397K 397K 78643K 90 0 0 exec 0 0K 1K 78643K 806 0 0 pfkey data 0 0K 4K 78643K 2 0 0 pagedep 1 8K 8K 78643K 1 0 0 inodedep 1 32K 32K 78643K 1 0 0 newblk 1 0K 0K 78643K 1 0 0 VM swap 7 26K 26K 78643K 7 0 0 UVM amap 114 22K 31K 78643K 9657 0 0 UVM aobj 117 4K 4K 78643K 139 0 0 memdesc 1 4K 4K 78643K 1 0 0 crypto data 1 1K 1K 78643K 1 0 0 ip6_options 0 0K 10K 78643K 9724 0 0 NDP 21 0K 1K 78643K 178 0 0 temp 233 3537K 4176K 78643K 109371 0 0 kqueue 0 0K 0K 78643K 15 0 0 SYN cache 2 16K 16K 78643K 2 0 0 ddb> show all pools Name Size Requests Fail Releases Pgreq Pgrel Npage Hiwat Minpg Maxpg Idle arp 64 75 0 70 1 0 1 1 0 8 0 rtpcb 80 273 0 271 1 0 1 1 0 8 0 rtentry 112 337 0 296 2 0 2 2 0 8 0 unpcb 120 1372 0 1361 1 0 1 1 0 8 0 syncache 264 22 0 22 9 9 0 1 0 8 0 tcpqe 32 7666 0 7666 5 5 0 1 0 8 0 tcpcb 544 1089 0 1084 3 2 1 2 0 8 0 ipq 40 24 0 24 8 7 1 1 0 8 1 ipqe 40 142 0 142 8 7 1 1 0 8 1 inpcb 280 8248 0 8238 19 17 2 5 0 8 1 rttmr 72 16 0 15 7 6 1 1 0 8 0 nd6 48 38 0 36 4 3 1 1 0 8 0 pkpcb 40 22 0 22 10 9 1 1 0 8 1 swfcl 56 4 0 0 1 0 1 1 0 8 0 ppxss 1128 53 0 53 13 12 1 1 0 8 1 art_heap8 4096 11 0 9 7 5 2 4 0 8 0 art_heap4 256 1464 0 1250 34 20 14 18 0 8 0 art_table 32 1475 0 1259 4 2 2 3 0 8 0 art_node 16 330 0 293 1 0 1 1 0 8 0 sysvmsgpl 40 14 0 11 1 0 1 1 0 8 0 semapl 112 520 0 510 1 0 1 1 0 8 0 shmpl 112 137 0 22 4 0 4 4 0 8 0 dirhash 1024 17 0 0 3 0 3 3 0 8 0 dino1pl 128 7500 0 6103 46 0 46 46 0 8 0 ffsino 240 7500 0 6103 83 0 83 83 0 8 0 nchpl 144 13073 0 11460 61 0 61 61 0 8 0 uvmvnodes 72 7512 0 0 137 0 137 137 0 8 0 vnodes 208 7512 0 0 396 0 396 396 0 8 0 namei 1024 43429 0 43429 5 4 1 1 0 8 1 vmpool 520 24 0 24 8 8 0 1 0 8 0 scsiplug 64 5 0 5 4 4 0 1 0 8 0 scxspl 192 53526 0 53526 25 24 1 7 0 8 1 plimitpl 152 291 0 284 1 0 1 1 0 8 0 sigapl 432 3698 0 3685 2 0 2 2 0 8 0 futexpl 56 99144 0 99144 3 2 1 1 0 8 1 knotepl 112 863 0 844 1 0 1 1 0 8 0 kqueuepl 104 774 0 771 1 0 1 1 0 8 0 pipepl 112 1746 0 1725 5 4 1 2 0 8 0 fdescpl 424 3699 0 3685 2 0 2 2 0 8 0 filepl 120 31512 0 31411 18 14 4 6 0 8 0 lockfpl 104 6112 0 6111 1 0 1 1 0 8 0 lockfspl 48 1090 0 1089 1 0 1 1 0 8 0 sessionpl 112 35 0 26 1 0 1 1 0 8 0 pgrppl 48 71 0 62 1 0 1 1 0 8 0 ucredpl 96 3618 0 3611 1 0 1 1 0 8 0 zombiepl 144 3691 0 3691 3 2 1 1 0 8 1 processpl 864 3720 0 3691 4 0 4 4 0 8 0 procpl 632 8028 0 7992 4 0 4 4 0 8 0 sosppl 128 48 0 48 13 13 0 1 0 8 0 sockpl 384 10021 0 9998 28 24 4 7 0 8 1 mcl64k 65536 1901 0 1901 118 117 1 33 0 8 1 mcl16k 16384 75 0 75 15 14 1 1 0 8 1 mcl12k 12288 116 0 116 8 7 1 1 0 8 1 mcl9k 9216 87 0 87 9 8 1 1 0 8 1 mcl8k 8192 208 0 208 6 5 1 1 0 8 1 mcl4k 4096 410 0 410 7 6 1 1 0 8 1 mcl2k2 2112 38 0 38 14 14 0 1 0 8 0 mcl2k 2048 58478 0 58433 23 16 7 20 0 8 1 mtagpl 80 71 0 71 4 4 0 1 0 8 0 mbufpl 256 143586 0 143518 103 96 7 23 0 8 0 bufpl 256 22545 0 14914 478 0 478 478 0 8 0 anonpl 16 490462 0 475479 163 86 77 82 0 62 8 amapchunkpl 152 19245 0 19137 79 74 5 16 0 158 0 amappl16 192 24423 0 23544 226 170 56 58 0 8 11 amappl15 184 894 0 894 6 6 0 1 0 8 0 amappl14 176 1590 0 1586 2 1 1 1 0 8 0 amappl13 168 167 0 167 2 2 0 1 0 8 0 amappl12 160 242 0 238 1 0 1 1 0 8 0 amappl11 152 282 0 271 1 0 1 1 0 8 0 amappl10 144 348 0 346 3 2 1 1 0 8 0 amappl9 136 860 0 852 1 0 1 1 0 8 0 amappl8 128 462 0 413 2 0 2 2 0 8 0 amappl7 120 446 0 439 1 0 1 1 0 8 0 amappl6 112 276 0 265 1 0 1 1 0 8 0 amappl5 104 613 0 603 1 0 1 1 0 8 0 amappl4 96 3068 0 3041 1 0 1 1 0 8 0 amappl3 88 2559 0 2554 1 0 1 1 0 8 0 amappl2 80 28420 0 28354 4 2 2 3 0 8 0 amappl1 72 76312 0 75901 28 19 9 20 0 8 0 amappl 80 8570 0 8533 1 0 1 1 0 84 0 dma4096 4096 1 0 1 1 1 0 1 0 8 0 dma256 256 6 0 6 1 1 0 1 0 8 0 dma128 128 253 0 253 1 1 0 1 0 8 0 dma64 64 6 0 6 1 1 0 1 0 8 0 dma32 32 7 0 7 1 1 0 1 0 8 0 dma16 16 17 0 17 1 1 0 1 0 8 0 aobjpl 64 138 0 22 2 0 2 2 0 8 0 uaddrrnd 24 3723 0 3685 1 0 1 1 0 8 0 uaddrbest 32 2 0 0 1 0 1 1 0 8 0 uaddr 24 3723 0 3685 1 0 1 1 0 8 0 vmmpekpl 168 25751 0 25725 2 0 2 2 0 8 0 vmmpepl 168 452611 0 450659 321 209 112 124 0 357 21 vmsppl 272 3698 0 3685 7 6 1 2 0 8 0 pdppl 4096 7452 0 7418 6 1 5 6 0 8 0 pvpl 32 1413670 0 1395535 497 283 214 296 0 265 56 pmappl 200 3722 0 3709 1 0 1 1 0 8 0 extentpl 40 41 0 26 1 0 1 1 0 8 0 phpool 112 900 0 294 19 0 19 19 0 8 0